# County graduation rates, weighted 2014-2020 in Maine

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### Why This Indicator Matters

**What the data shows**

At the state level, 87.4% graduated in 2020. This is the same rate as 2019 and noteworthy, given that the pandemic struck in March 2020..Two counties achieved graduation rates above 90% in 2019: Knox at, 91.3% and York at 90.8%. The lowest county graduation rates in 2020 were in: Androscoggin at 80.1%; Somerset at 84.0% and Oxford 85.0%.

Nationally, for the most recent year data was available, the graduation rate for 2017-2018 was 85%, so Maine has a higher rate than the national rate. The State is working toward a goal of having a 90 percent graduation rate.

**Definitions:**
The number and percent of youth by county who graduate in 4 years from public schools and 60% publicly funded private schools. The numerator is the number of youth graduating in the state in 4 years and the denominator includes the cohort of ninth grade students 4 years prior plus all transfers in and all transfers out.

**Data Source:**
Special data request to the Maine Department of Education for high school graduation aggregated by the county.

Source for national comparisons

High School Grad Rates By State 2018

**Footnotes:**
The year refers to the year of graduation, so 2020 is the 2019-2020 school year. In this series, the calculation is at the student level rather than the school level. This makes it "weighted". For example, suppose a county had 3 schools, one with 300 ninth graders and two small schools with 20 ninth graders each. If 70% of the students graduated at the large school and 95% at the two other schools, the student average would be (300x70%)= 210 graduates plus 19 + 19 graduates, so the "weighted average would be 248/340 = 72.9% for the county.

The data for the series 2009 -2013 is unweighted. This means it averages all the individual school graduation rates in a county, rather than taking all the ninth graders in the county and how many of that cohort graduated 4 years later. In the above example, the graduation rates of the three schools would be averaged (70% +95% +95%)/3 = 86.6%. 86.6% would be the unweighted average.

Updated September 2021.